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Free_Kalibri [48]
3 years ago
12

There are 20 people in a room, If they all shake each other's hands once and only once, HOW MANY handshakes are there altogether

?

Mathematics
2 answers:
vazorg [7]3 years ago
7 0
I thinkkkkk40 I think
Ann [662]3 years ago
5 0

Answer:380 Shakes

Step-by-step explanation:

first you need to figure out how many people are shaking the persons hand sou you do 20 x 16 which equals 380

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93.64m to metres and centimetres
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Need help on this question
Sedaia [141]

Answer:

A

Step-by-step explanation:

Hey There!

So these triangles are congruent so segment CD is equal to segment DB

so to find x we use the equation

7x+10=10x+7

now we solve for x

step 1 subtract each side by 7

10-7=3

7-7 cancels out

now we have 7x+3=10x

step 2 subtract each side by 7 x

10x-7x=3x

7x-7x= cancels out

now we have

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step 3 divide each side by 3

3/3=1

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now we have

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3 0
3 years ago
Read 2 more answers
Thea and Eleanor are reading the same book. The graph shows the number of words Thea reads over time. Eleanor reads 225 words pe
Lapatulllka [165]
The slope is the rate
words per minute
we can do
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divide by 3
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thea=180wpm
elanor=225wpm

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and 225*2=450


answers are
Thea reads 180 words per minute.

Eleanor reads 450 words every 2 minutes.

After 1 hour of reading, Eleanor reads more words than Thea.

6 0
3 years ago
Read 2 more answers
Can you please help me understand this question please?
GREYUIT [131]

Answer:

B

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-2 is y

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